In the interests of political correctness, the following sentence is dedicated to the inhabitants of the planet Remulak (in their native language): The most laughter-causing representation by means of a light passing through a transparent film onto a large screen for the viewing pleasure of mass audiences may be Coneheads, directed by the primitive blunt skull homosapien called Steve Barron.

Based on Saturday Night Live skits, Coneheads is about the struggles of two Remulakese to adapt to Earth life. Since the two main characters are from another planet, the filmmakers had lots of room for the ridiculous. So the writers, one being Dan Aykroyd who plays the ever-trying-to-blend-in Beldar, loaded the film with the usual nonsense that the sci-fi spoof was famous for on television.

However, the movie is not completely out of this sphere, including some sometimes-risky humor (especially for more conservative and/or younger audiences).

For example, shortly after crashing into Earth and checking into a motel, Prymaat (Jane Curtin) glances through the Bible as if it were the funny pages, laughing liberally. Also, when a sadistic U.S. immigration agent designs a plan to put explosive collars on illegal aliens, he eventually finds himself transported to exactly that situation on the Coneheads' home planet, Remulak.

''The United States of America can no longer solve the employment problems of the universe,'' the agent tells the Remulak official.

Finally, there is a brown-nosing agent who, after being taken prisoner, fits right into the imperial entourage of Remulak. This sort of humor, along with the usual gags from the '70s SNL skits, carries the plot well.

At the movie's beginning, Beldar and Prymaat's spacecraft is shot down by the always-accommodating U.S. Air Force. This puts a damper on their

plans to conquer the world, so instead they must conquer the economic and legal barriers that many immigrants to the United States face.

They are industrious and avoid ''human authority figures.'' Eventually, they fulfill the American dream in middle-class suburbia. The Coneheads are good neighbors, play golf, read Cosmo, raise their young one Connie (Michelle Burke) into adolescence and, of course, consume mass quantities. This goes on until the agents are hot on their Cones again.

The agent who almost caught the Coneheads years ago is due for a promotion but must remove his failure to capture them from his otherwise spotless, albeit overzealous, record. The only hope the family of aliens has is the coming of their rescue ship.

The filmmakers and the actors keep the dice of unlikelihood rolling when we see the planet Remulak, satire of all overgrown empires. Here there is more trouble than ever, but with a little human ingenuity, you know the characters will come out OK. The surprises are in the humor, which is corny as ever, but with an additional sharpness that is a step into a new frontier of comedy for the ''out of this world'' Conehead family.